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Mathematics News
You are here: Index  The Database of Number Correlations 
45th and 46th Mersenne Primes Discovered
Two years after the 44th known Mersenne prime was reported (MathWorldheadline
news, September 11, 2006), the GIMPS project has discovered the 45th and 46th
known Mersenne primes: 2^37156667 - 1 and 2^43112609 - 1. The discoveries
were made by Edson Smith on August 23, 2008 (for the larger prime) and
Hans-Michael Elvenich on September 6, 2008 (for the smaller prime), and
announced by GIMPS organizer George Woltman on September 16. The new Mersenne
primes have 11,185,272 and 12,978,189 decimal digits, making them not only the
largest Mersenne primes known, but also the largest known primes of any type.
The first discovered (and largest) of these prime also earns its finders a
$100,000 prize from the Electronic Frontier Foundation for the discovery of a
prime number with 10 million or more digits.
Tue, 16 Sep 2008 13:30:00 -0500
| Two New Mersenne Primes Apparently Discovered
A new Mersenne prime was reported to the GIMPS server on August 23, 2008.
This prime was confirmed by Septempber 6, though its value has not yet ben
revealed pending independent verification using a different program on a
different computer architecture. More amazingly still, during the period
required for the first verification of the recently reported new prime a
second new Mersenne prime was reported and is currently being verified.
Sun, 7 Sep 2008 08:30:00 -0500
| New Mersenne Prime Apparently Discovered
A new Mersenne prime was reported to the GIMPS server on August 23. GIMPS
organizer Woltman has asked the finder to send the last save file, so it
should very soon be known with more than 99% certainty if the reported
discovery is true.
Tue, 26 Aug 2008 11:00:00 -0500
| A New Look and New Features for MathWorld
While MathWorld continues to be the most popular and most visited mathematics
sites on the internet, and while its mathematical content continues to
steadily grow and expand, MathWorld readers will notice more immediate visual
changes the next time they visit the site. Design changes and major new pieces
of functionality are generally years in the making for large informational
websites like MathWorld. The last time the site received a major upgrade to
its infrastructure was in July of 2005. On Friday of last week, we introduced
a major update of the MathWorld site featuring improved navigation,
higher-quality typesetting, and links to interactive demonstrations. I
encourage you to visite the updated site and enjoy the beneifts that the new
look and associated functionality provide.
Tue, 12 Feb 2008 09:35:00 -0500
| NUMB3RS Season 4 Premier to Air Friday, September 28 at 10pm ET on CBS
Wolfram Research is pleased to partner with CBS in promoting math awareness
through NUMB3RS. As the world's leading producer of software for mathematical
and scientific computation, Wolfram Research is dedicated to spreading our
passion for mathematics and computation throughout the globe. Members of
Wolfram's R&D staff provide NUMB3RS with real math to support each episode
of the show. Just as it is used in so many of today's real-world scientific and
technological innovations, our flagship product Mathematica is also used to
create the math behind NUMB3RS.
Thu, 20 Sep 2007 16:00:00 -0500
| The Wolfram 2,3 Turing Machine Research Prize
A universal Turing machine is powerful enough to emulate any standard
computer. The question is: how simple can the rules for a universal Turing
machine be? Since the 1960s it has been known that there is a universal 7,4
machine. In A New Kind of Science, Stephen Wolfram found a universal 2,5
machine, and suggested that the particular 2,3 machine that is the subject of
this prize might be universal. The prize is for determining whether or not the
2,3 machine is in fact universal.
Tue, 29 May 2007 15:30:00 -0500
| The Math(ematica) behind Television's Crime Drama NUMB3RS
Viewers of prime time television will likely be quite familiar with police
chases, blood-stained bodies, and massive explosions. What they may be less
familiar with is a protagonist whose job title is "math professor" and who
uses crime investigation techniques that delve deep into mathematical concepts
and equations. Nevertheless, that's exactly what viewers are likely to find on
the CBS Paramount television crime drama NUMB3RS, which airs at 10
p.m. U.S. Eastern on Fridays. Even before the show first premiered in January
2005, a group of researchers at Wolfram Research has been part of the core
group of advisers who assist with all aspects of the the mathematics in the
show. NUMB3RS remains one of the most popular programs on television, and its
co-creators Nick Falacci and Cheryl Heuton have been the recipients of a
number of prestigious awards for science communication to a general audience.
Most recently, Nick and Cheryl were honored with a Public Service Award from
the National Science Board, presented at the U.S. State Department diplomatic
reception rooms in Washington, DC on May 14. We at Wolfram Research count
ourselves fortunate to be primary consultants for NUMB3RS, and more fortunate
still to have been invited by Cheryl to attend and take part in the award
presentation.
Thu, 24 May 2007 15:26:00 -0500
|
Horizontal and vertical Zoom
Hi All,
I have a figure that has 3 axes on it. the main axes has a surf plot
on it, which is set to xy view.
below the main axes,
Tue, 1 Jun 2004 00:00:00 -0500
| selective plot and calculation
Hi all,
I've written a matlab program to do calculation in 2D region, after
that I plot the result using surface plot and quiver. Howver
Tue, 1 Jun 2004 00:00:00 -0500
| histogram matches
Hi all:
I don't know how to let one image histogram matches to another image.
Thank you
Tue, 1 Jun 2004 00:00:00 -0500
| Create a vector of derivatives, given a vector of values
Am looking for recommendations about how to create a vector of derivatives given a vector of values.
In this case, I have an array with
Tue, 1 Jun 2004 00:00:00 -0500
| Re: Help me solve some equations please.
The first k is k1 and is different than the second, so k1=b/a.
f/d/e is obviously f/(de), like MATLAB notation.
I don't think you
Tue, 1 Jun 2004 00:00:00 -0500
| Re: Display a cell array in listbox
Feng wrote:
> I want to display a cell content in listbox, the cell has double and string, what is the
> best way
Tue, 1 Jun 2004 00:00:00 -0500
| Re: how to show the value of x and y automatically in graph
Re wrote:
> i want to show the value of x and y automatically in graph.
It isn't clear to me -where- you
Tue, 1 Jun 2004 00:00:00 -0500
|
Falling Sound
Problem ID: 347 (21 Sep 2008) / Difficulty: 3 star
Sun, 21 Sep 2008 00:00:00 GMT
| Largest Root
Problem ID: 346 (21 Sep 2008) / Difficulty: 2 star
Sun, 21 Sep 2008 00:00:00 GMT
| Exponential Symmetry
Problem ID: 345 (09 Jul 2008) / Difficulty: 4 star
Wed, 09 Jul 2008 00:00:00 GMT
| Rounding Error
Problem ID: 344 (09 Jul 2008) / Difficulty: 2 star
Wed, 09 Jul 2008 00:00:00 GMT
| Multiplicatively Perfect
Problem ID: 343 (26 Jun 2008) / Difficulty: 3 star
Thu, 26 Jun 2008 00:00:00 GMT
| Area Of Annulus
Problem ID: 342 (26 Jun 2008) / Difficulty: 2 star
Thu, 26 Jun 2008 00:00:00 GMT
| Equable Rectangles
Problem ID: 341 (18 Jun 2008) / Difficulty: 3 star
Wed, 18 Jun 2008 00:00:00 GMT
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You are here: Index The Database of Number Correlations
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